Double-acting pump



f NTTED STATES AUGUST REILING, OF FORT WAYNE, INDIANA.

DOUBLE-ACTING PUMP.

SPECIFICATION forming part of Letters Patent No. 390,901, dated Octeber 9, 1883.

Application filed December 22, 1887. Serial No. 258,713. (No model.)

To @ZZ whom it may concern.'

Be it known that I, AUGUST REILING, a citizen of the United States, residing at Fort Vayne, in the county of Allen and State of Indiana, have invented new and useful Improvenients in Double-Acting Pumps, ofwhich the following is a specification.

My invention relates to double-actingpumps; and the purpose thereof is to simplify and improve the construction and organization of pumps of this type.

The invention consists in the several novel vfeatures of construction and new combinations of parts, hereinafter fully set forth, and deiinitely pointed out in the claim.

In the accompanying drawings, Figure 1 is a central vertical section showing my invention. Fig. 2 is a similar section, enlarged, of a part ofthe devices shown in Fig. 1.

In the said drawings, the reference-numeral 1 denotes the pump-cylinder, having a stuffing-box, 2, for the piston-rod 3, and asolid piston-head, 4, moving in said cylinder. The cylinder 1 is mounted upon a base, 5, which is of any suitable form and dimensions, it being preferred to conform the base to the shape of the pump-cylinder and extend it upon one side, as shown at 6 in Fig. 1. The base 5 is provided with a bottom tiange, 7,l and contains a chamber, 8, having an opening, 9, to admit water by a pipe tapped into said opening.

Upon the extension 6 of the base is formed an opening, 10, having communication with the chamber 8 and with the upper end of the cylinder 1 above the piston by means of a vertical water-passage way 12, said opening 10 being supplied with a valve, 14, which closes against any downward current through the passage 10. Upon the opposite side of the cylinder is formed a port, 15, having communication with a pipe, 16, which enters a spherical valve-chamber, 167. This chamber coniinunicates with the service or supply pipe 17, and also with the upper end of the cylinder by a passage, 17. A port, 1S, is formed in the lower end of the cylinder opening into the chamber 8 and closed on the downward stroke by a valve, 19.

In the valvechamber 16, I arrange two valves, and 21, the former closing the entrance to the pipe 16. The valve 21 moves laterally and closes the passage 17 on each downward stroke, and has a stem, 22, sliding in a bracket, 23, and provided with a spring, 24, by which it is normally thrown upon its seat. The valve 2O may be a common puppet-valve or of other form, and it is convenientto supply both valves with guiding-pins 25.

The operation of the pump is shown by the drawings. When the piston descends, the valve 19 closes, the valve 14 opens, and water flows from the chamber8 through the passage 10 and port 13 and fills the cylinder above the piston. At the same time the water below said piston flows through the port 15 and pipe 16, opens the valve 20, and, valve 21 being closed, passes through the spherical valvechamber 16 to the pipe 17. On the reverse stroke valve 14 closes and valve 19 opens, tilling the cylinder below the piston, while the water above it opens the valve 21, closes valve 20, and iiows to the service-pipe 17 in a continuous stream, and constituting a double-acting pump which can be used either in a cistern or connected with any suitable source of water-supply. The pipe 16 communicates with the cylinder below by an elbow, 33, to which it is connected by a coupling, 34. A

similar coupling, 35, connects it to the branch f 36, leading to the valve chamber 16a. By unscrewing these couplings the pipe 16 will be released and dropped down in the elbow'33,

so that access may be had to the valvesin thevalveohamber should repairs be necessary.

W'hen the pump is used for steamboilers orfor any heavy work, guiding-rods 37 are mounted on the cylinder, and a cross-head, 38, is mounted on the piston to engage with said guides. A stufng-box, 2, is also provided tor the piston, and a connecting-rod, 40, is attached to any crank.

'A double-acting pump consisting of a detachable base, 5, provided with a chamber, 8, communicating by a passage, 10, with the uppery end of the pump-cylinder above the piston, 'a pipe, 16, at the opposite side of the cylinder, communicating with the latter above and below the piston, and having at its up- In testimony whereof I ax my signature in per end :L detachable valvechamber, 16', bpresence of two witnesses.

ted to the cylinder beneath its upper end, and

from which rises a service-pipe, 17, and a AUGUST REILING. downwardly-dosing valve, 20, and a laterallyclosingsprngimpeHed valve, 2l, both located Vitnesses:

in said valvevehamber, substantially as shown JAMES M. ROBNSON, and described. EMMETT V. EMRICK. 

